User Guide

DEFINITY Enterprise Communications Server Release 5
Maintenance and Test for R5vs/si
555-230-123
Issue 1
April 1997
Maintenance Object Repair Procedures
Page 10-1204RING-GEN (Analog Ring Generator)
10
FAIL Ringing voltage is below acceptable levels.
PROCEDURE FOR A MULTI-CARRIER CABINET
SYSTEM.
1. If this is a High or Critical Reliability system,
determine the active Tone-Clock circuit pack by
issuing a status port network command. Make the
Standby Tone-Clock circuit pack active via the set
tone-clock PC command and rerun the test.
a. If the test passes, the trouble is with the new
Standby Tone-Clock circuit pack. Refer to the
TONE-BD (Tone-Clock Circuit Pack) Maintenance
documentation for details on replacing the
Standby Tone-Clock circuit pack. After the circuit
pack is replaced, make this Tone-Clock active
again by issuing the set tone-clock PC
command and rerun the test.
b. If the test fails, then proceed with Step 2.
2. Look for and resolve CARR-POW (Carrier Port Power
Supply Unit) alarms first, and then rerun the test.
3. Check fuse F9 on the Power Distribution Unit.
Replace F9 if it is blown, and rerun the test. If the test
still fails, then an Analog Line circuit pack could be
defective and causing the Analog Ring Generator
and/or fuse F9 to fail.
4. Unseat all Analog circuit packs in the affected
cabinet, and replace fuse F9 again if needed. Rerun
the test.
Table 10-373. TEST #118 Analog Ring Generator Query Test — Continued
Error
Code
Test
Result Description/ Recommendation
Continued on next page